fix failure-to-wake in rwlock unlock

[musl] / src / thread / pthread_rwlock_unlock.c

diff --git a/src/thread/pthread_rwlock_unlock.c b/src/thread/pthread_rwlock_unlock.c
index 5edca63..a6d2085 100644 (file)
--- a/src/thread/pthread_rwlock_unlock.c
+++ b/src/thread/pthread_rwlock_unlock.c
@@ -12,7 +12,7 @@ int pthread_rwlock_unlock(pthread_rwlock_t *rw)
        } while (a_cas(&rw->_rw_lock, val, new) != val);
 
        if (!new && (waiters || val<0))
-               __wake(&rw->_rw_lock, 1, 0);
+               __wake(&rw->_rw_lock, cnt, 0);
 
        return 0;
 }